Magnetism Part II (6th Grade)

In an electromagnet, turning on the current...

• creates a magnetic field

• removes a magnetic field

• will electrocute you

• will turn off the battery

Tags

NGSS.MS-PS2-3

Electromagnets are magnets that are powered by

• gravity

• magnetism

• electricity

• polarity

Tags

NGSS.MS-PS2-3

If you increase the amount of electrical current, the strength of the electric field _____________.

• increases

• decreases

• stays the same

• disappears

Tags

NGSS.MS-PS2-3

What happens when you run a current through a wire?

• it makes any magnetic field disappear

• it creates a magnetic field around the wire

• the temperature of the wire decreases

• a battery will lose power

Tags

NGSS.MS-PS2-3

Which of the following devices uses electromagnets?

• speakers

• electric motors

• both speakers and electric motors

• neither of these use electromagnets

TRUE or FALSE: "Electromagnets can be turned on and off."

• TRUE

• FALSE

The polarity of an electromagnet _______ be reversed.

• can

• cannot

Tags

NGSS.MS-PS2-3

What are made by coiling electrical wire around a central core of iron or steel?

• magnets

• batteries

• electricity

• electromagnets

Tags

NGSS.MS-PS2-3

In an electromagnet, turning the current off...

• creates a magnetic field

• removes a magnetic field

• decreases a magnetic field a little

• boosts the magnetic field drastically

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NGSS.HS-PS2-5

Polarity ______ be changed.

• can

• cannot

Tags

NGSS.MS-PS2-3